#  Copyright (c) PARRRATE T&V 2021. All rights reserved.

from abc import ABC
from typing import TypeVar

from bu4.parsing.abstractparser import AbstractParser
from bu4.parsing.extensions.abstractextension import AbstractExtension

__all__ = ('Extension',)

T = TypeVar('T')


class Extension(AbstractExtension[T], ABC):
    def __init_subclass__(cls, /, code: int = None, **kwargs):
        super().__init_subclass__(**kwargs)
        if code is None:
            raise TypeError
        cls.code = code

    def __init__(self, parser: AbstractParser):
        self.parser = parser